I'm looking for a set of 70/30 tires street tires that have a similar profile to the TKC80s. I got an extra set of dirt rims that woody's built, and promptly put a set of tkc80s on them. I have been using them for about a month or so, and i really like how they feel and handle off and on road. I'm getting ready to to a 200-300 mile day trip of all street, so I put the stock rims with their pirelli scorpion trails back on. The bike went from feeling light with quick steering, and a nice fall into the corners to a sluggish steering bike that does its best to stay upright. I seems I have to muscle it into to corners. I've checked the tire pressure to be sure, as that was my first thought. The only thing I can think of is the section profile being different. I want to get some street oriented tires that match the section profile of the tkc80s. Any suggestions? Am I totally out to lunch on this? I'm fairly new to these big dirt bikes, so any thoughts on the issue are appreciated.